import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
import java.util.Properties;

public class Server {
	ServerSocket serverSocket;
	ArrayList<Socket> listSocket;
	ArrayList<ObjectInputStream> listOis;
	ArrayList<ObjectOutputStream> listOos;

	Properties configuration;
	Properties accounts;

	Server() throws IOException {
		listSocket = new ArrayList<>();
		listOis = new ArrayList<>();
		listOos = new ArrayList<>();
		startServer();
	}

	public void startServer() throws IOException {
		serverSocket = new ServerSocket(12345);
		Runnable acceptingThread = new Runnable() {

			@Override
			public void run() {
				// TODO Auto-generated method stub
				while (true) {
					try {
						Socket s = serverSocket.accept();
						//ObjectInputStream ois = new ObjectInputStream(s.getInputStream());
						ObjectOutputStream oos = new ObjectOutputStream(s.getOutputStream());
						//oos.flush();
						System.out.println("Client connectat");

					} catch (IOException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}

				}

			}

		};
		Thread t = new Thread(acceptingThread);
		t.start();
	}

	public static void main(String[] args) throws IOException {
		Server s = new Server();
	}

}










import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;

import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.ListSelectionModel;

public class Client {

	private Socket socket;

	private JFrame frame;
	private JPanel panel;
	private JTextField typeField;
	private JTextArea chatArea;
	private DefaultListModel dfl;
	private JList jlist;
	private JScrollPane jScrollPane;
	private JTextField username;
	private JPasswordField password;
	private JButton login;
	private JButton loginAnon;
	private JLabel usernameLabel, passwordLabel;
	private JButton walkieButton;

	Client() throws UnknownHostException, IOException {
		interfataGrafica();
		connectToServer();
	}

	public void connectToServer() throws UnknownHostException, IOException {
		socket = new Socket("localhost", 12345);
	}

	public void interfataGrafica() {
		frame = new JFrame("Walkie Talkie - Client - Normal User");
		panel = new JPanel();

		frame.setSize(750, 750);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setLocationRelativeTo(null);

		frame.setLayout(new BorderLayout());
		panel.setLayout(new GridBagLayout());

		GridBagConstraints c = new GridBagConstraints();

		usernameLabel = new JLabel("Username", JLabel.CENTER);
		passwordLabel = new JLabel("Password", JLabel.CENTER);
		c.gridx = 0;
		c.gridy = 0;

		c.insets = new Insets(5, 5, 5, 5);
		panel.add(usernameLabel, c);
		c.gridy = 1;
		panel.add(passwordLabel, c);

		c = new GridBagConstraints();
		username = new JTextField("     ");
		password = new JPasswordField(4);
		c.gridx = 1;
		c.gridy = 0;
		c.weightx = 1;
		c.fill = c.HORIZONTAL;
		c.insets = new Insets(5, 5, 5, 5);
		panel.add(username, c);
		c.gridy = 1;
		panel.add(password, c);

		login = new JButton("Login");
		loginAnon = new JButton("Login Anon");
		c = new GridBagConstraints();
		c.gridx = 2;
		c.gridy = 0;
		c.fill = c.BOTH;
		c.insets = new Insets(5, 5, 5, 5);
		panel.add(login, c);
		c.gridy = 1;
		panel.add(loginAnon, c);

		dfl = new DefaultListModel();
		dfl.addElement("User1");
		dfl.addElement("User2");
		jlist = new JList(dfl);
		jlist.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
		jlist.setSelectedIndex(-1);
		jScrollPane = new JScrollPane(jlist);

		c = new GridBagConstraints();
		c.gridx = 4;
		c.gridy = 0;
		c.gridheight = 6;
		c.gridwidth = 1;
		c.weightx = 0.5;
		c.weighty = 1;
		c.fill = c.BOTH;
		panel.add(jScrollPane, c);

		c = new GridBagConstraints();
		chatArea = new JTextArea();
		c.gridx = 0;
		c.gridy = 2;
		c.gridheight = 5;
		c.gridwidth = 4;
		c.weightx = 1;
		c.weighty = 1;
		c.insets = new Insets(10, 10, 10, 10);
		c.fill = c.BOTH;
		panel.add(chatArea, c);

		c = new GridBagConstraints();
		typeField = new JTextField("Insert your message here");
		c.gridx = 0;
		c.gridy = 7;
		c.weightx = 2;
		c.gridwidth = 5;
		c.insets = new Insets(10, 10, 10, 10);
		c.fill = c.HORIZONTAL;
		panel.add(typeField, c);

		walkieButton = new JButton("Walkie Button");
		c = new GridBagConstraints();
		c.gridx = 4;
		c.gridy = 6;
		c.weightx = 1;
		c.weighty = 1;
		c.fill = c.BOTH;
		panel.add(walkieButton, c);

		frame.add(panel);
		frame.setVisible(true);
	}

	public static void main(String[] args) throws UnknownHostException, IOException {
		Client c = new Client();
	}

}